Ergo AR15 Upper Receiver Spring Kit

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Ergo AR15 Lower Receiver Spring Kit

Ergo AR15 Lower Receiver Spring Kit


AT3 Tactical AR-15 Slick Side Billet Upper Receiver

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Ergo AR15 Upper Receiver Spring Kit

Ergo Grip is a reputable manufacturer of firearm accessories and offers a comprehensive 5-piece AR upper receiver spring kit that is specifically designed to fit AR15 upper receivers. This high-quality kit includes a variety of springs, each of which is essential for the proper functioning of your firearm. With this kit, you can rest assured that your rifle will perform at its best.

The kit includes an ejector spring, which is responsible for ejecting the brass casing from the ejection port and bolt. Also included is a forward assist spring, which is responsible for retaining the forward assist. The ejection port cover spring is designed to keep the ejection port cover in place and make it fully open after, the bolt is pulled to the rear. The extractor spring and extractor spring buffer ensure that the brass casing is extracted from the chamber, making room for the next round to be loaded.

Each spring in this kit is made from high-quality materials and is built to last. Whether you are a professional gunsmith or a casual shooter, this kit is an essential addition to your arsenal.


  • Ejector Spring
  • Forward Assist Spring
  • Ejection Port Cover Spring
  • Extractor Spring
  • Extractor Spring Buffer


  • Brand: Ergo
  • Model: AR15 Upper Receiver Spring Kit
  • MPN: 4611
  • Fit: Mil-Spec AR-15
  • Color: Black
  • Material: Steel and Aluminum
  • Finish: Anodized
  • Weight: 0.35 oz

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

ERGO Limited Lifetime Warranty

  • ERGO products are backed by a Limited Lifetime Guarantee. If your ERGO product is defective or breaks down due to a manufacturer defect, we will replace it for free.
  • If you’re not completely satisfied with your net purchase, you can return your eligible items by mail within 90 days of the original ship date.
  • Call us to get your return started. Returns are only accepted when the product was purchased directly from ERGO GRIPS. All returns are subject to a 15% restocking fee.

Telephone: 877-281-3783
Return Address: 115 Martinez Rd, Moriarty, NM 87035

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.